10491331 has 2 divisors, whose sum is σ = 10491332. Its totient is φ = 10491330.

The previous prime is 10491319. The next prime is 10491373. The reversal of 10491331 is 13319401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10491331 - 2¹³ = 10483139 is a prime.

It is a super-2 number, since 2×10491331² = 220136052303122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10491391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5245665 + 5245666.

It is an arithmetic number, because the mean of its divisors is an integer number (5245666).

Almost surely, 2^10491331 is an apocalyptic number.

10491331 is a deficient number, since it is larger than the sum of its proper divisors (1).

10491331 is an equidigital number, since it uses as much as digits as its factorization.

10491331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 10491331 is about 3239.0324172506. The cubic root of 10491331 is about 218.9156768282.

The spelling of 10491331 in words is "ten million, four hundred ninety-one thousand, three hundred thirty-one".